Filter Press Sealing Strip Stiffener for Faster Replacement
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Solution Overview
Problem
Existing sealing strips for filter presses face challenges in achieving efficient sealing, requiring cumbersome installation, prolonged cycle times, and hindering replacement due to adhesive use, while maintaining sufficient height for compression and sealing pressure.
Innovation Solution
The sealing strip is enhanced with a stiffener at its base portion, intersecting a ridge, to resist deformation and facilitate easier installation and replacement, reducing cycle times by improving sealing pressure and compression travel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adhesive is used to secure the sealing strip in the groove, then the sealing strip position is fixed, but the removal and replacement of the sealing strip is hindered and the groove must be cleaned from adhesive remains
Solution Approach 1:
The sealing strip is divided into a first section and a second section with different cross-sectional areas, allowing the first section to engage with the groove for positioning while the second section provides sealing function, enabling tool-free installation and removal without adhesive
Solution Approach 2:
The adhesive bonding function is extracted and replaced by a mechanical retention mechanism where the first section of the sealing strip engages with the groove through a tailored fit, allowing the sealing strip to be secured without adhesive while maintaining ease of removal
2Reliability
If the sealing strip height extending out from the groove is increased to achieve sufficient compression for sealing, then sealing effect is improved, but the distance adjacent filter frame assemblies must travel to open and close the filter chamber increases, thereby increasing cycle time
Solution Approach 1:
The sealing strip has different cross-sectional areas in different sections: the first section has a larger cross-sectional area for engagement with the groove to provide compression and sealing, while the second section has a smaller cross-sectional area for the sealing function, optimizing both sealing effect and cycle time
3Reliability
If the sealing strip height extending within the groove is increased to securely attach the sealing strip to the filter frame, then attachment security is improved, but the distance adjacent filter frame assemblies must travel to open and close the filter chamber increases, thereby increasing cycle time
Solution Approach 1:
The sealing strip has different cross-sectional areas in different sections: the first section has a larger cross-sectional area for engagement with the groove to provide secure attachment, while the second section has a smaller cross-sectional area for the sealing function, optimizing both attachment security and cycle time
4Reliability
If the longitudinal ends of the sealing strip are pressed against each other to form a tight seal, then seal integrity is improved, but the sealing strip elastically deforms and the remaining sealing strip in the groove prevents the axial ends from being pushed against each other, making installation cumbersome and time consuming
Solution Approach 1:
The sealing strip is divided into a first section with larger cross-sectional area for engagement and a second section with smaller cross-sectional area for sealing, allowing the longitudinal ends to be easily joined while maintaining seal integrity
Solution Approach 2:
The cross-sectional area parameter is varied along the length of the sealing strip, with the first section having a larger area for mechanical engagement and the second section having a smaller area for sealing, facilitating easier installation while maintaining seal integrity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The stiffener enables easier alignment of longitudinal ends, reduces deformation, and shortens filtration cycle times by enhancing sealing efficiency and simplifying installation, while maintaining effective sealing pressure.
Implementation Method 1
the sealing strip must be able seal the filtration pressure prevailing in the filter chamber against the environmental pressure, in addition to withstand the compression pressure at which the adjacent filter frame assemblies are pressed against each other
Implementation Method 2
the elasticity of the sealing strip allows it to be inserted into the groove during installation
Data Source
AI summary
A sealing strip for sealing adjacent filter plate assemblies of a horizontal filter press. The disclosure is based on the idea of providing the sealing strip with a stiffener at a base portion of the sealing strip, positioned such that it intersects with a line running through a ridge provided on a distal portion of the sealing strip and extending along a vertical direction, perpendicular to both the length direction and the width direction of the sealing strip, as seen along the cross-sectional profile of the sealing strip. A filter frame, a filter frame assembly and a filter apparatus having such a sealing strip are also provided.